Description

Di-tert-Butyl Peroxyundecanedioate is a high-purity organic peroxide initiator used in polymerization and cross-linking reactions. This compound is valued for its specific decomposition temperature, which provides controlled initiation essential for manufacturing consistent, high-quality polymers. It is a critical material for producers of specialty plastics, elastomers, and coatings who require precise reaction kinetics and reliable performance in their formulations.

Application

• Polymerization Initiator: Used as a free-radical initiator for the production of polyethylene (LDPE), polystyrene, and polyvinyl chloride (PVC).
• Cross-Linking Agent: Essential for the curing and cross-linking of unsaturated polyester resins and silicone rubbers.
• Synthesis Intermediate: Employed in organic synthesis for introducing peroxy functional groups.
• Composite Manufacturing: Used in the production of fiber-reinforced plastics (FRP) and sheet molding compounds (SMC).
• Adhesive & Coating Formulations: Acts as a curing agent in specific high-performance adhesive and coating systems.
• Elastomer Production: Facilitates the vulcanization and modification of synthetic rubbers.

Basic Information

Product Name	Di-tert-Butyl Peroxyundecanedioate
CAS No.	22537-97-9
Molecular Formula	C₁₉H₃₆O₆
Molecular Weight	360.49 g/mol
Synonyms	Di-tert-butyl peroxyundecanedioate; Di-tert-butyl peroxydodecanedioate (common misnomer); Peroxide, bis(1,1-dimethylethyl) undecanedioate; DTBPUD; tert-Butyl peroxyundecanedioate; Bis(tert-butyl) peroxyundecanedioate; Luperox 331M80 (potential trade name); Initiator TBUD
EINECS	Contact for details

Quality Control

Our Di-tert-Butyl Peroxyundecanedioate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including assay by HPLC and active oxygen content determination, to ensure it meets precise purity and performance specifications. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment to guarantee traceability and consistency for your production processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat, sparks, and open flames. Keep away from reducing agents, strong acids, bases, and other incompatible materials. Recommended storage temperature is below 25°C (77°F). This material is light-sensitive (store away from light) and a strong oxidizer; observe all local regulations for hazardous material storage.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Active Oxygen Content	≥ 4.43 %
Impurities (GC/HPLC)	≤ 2.0 % total
Density (at 20°C)	~0.95 g/cm³
Refractive Index (n20D)	~1.430

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.